MIPS on OpenBSD [email protected] MIPS on OpenBSD ● Why should I care? ● Where can I get some? ● History ● Current world ● Future About Me ● OpenBSD dev, mostly doing ports. ● But I am not a computer scientist/tech person by trade. ● Interested in MIPS support. ● My start with MIPS ports: I wanted to play a game. About Me My current MIPS inventory: ● SGI O2 ● 2x Lemote Yeeloong ● Lemote Fuloong ● Loongson-1B development board Why MIPS? Why MIPS? ● According to a 2011 Forbes article, 500 million MIPS CPUs are shipped each year. ● At least some of them end up in general- purpose devices. ● We should aim to support those devices! Why MIPS? ● “Shut up and hack!” ● Help expose bugs. ● MIPS is not going away. ● Be the coolest person you know 8-) ● It's just fun! SGI SGI ● History ● Recent (2012) improvements SGI ● IP20: Indigo ● IP22: Indy, Indigo2 ● IP27: Origin ● IP28: POWER Indigo2 ● IP30: Octane, Octane 2 ● IP32: O2, O2+ ● IP35: Fuel, Tezro, Origin 3000, Onyx 4 SGI SGI ● What works? ● What doesn't? ● Where can I get one? Loongson Loongson ● China's homegrown CPU, from the Chinese Academy of Sciences (ICT) ● Little-endian MIPS ● Chinese technology independence? Loongson ● Loongson-1: 1A, 1B ● Loongson-2: 2B, 2C, 2E, 2F, 2G, 2H ● Loongson-3: 3A/2GQ, 3B, 3C ● Loongson-T: T Loongson ● Loongson-1: 1A, 1B ● Loongson-2: 2B, 2C, 2E, 2F, 2G, 2H ● Loongson-3: 2G, 2H, 3A/2GQ, 3B, 3C ● Loongson-T: T Loongson ● 2F machines: Fuloong, Lynloong, Yeeloong Loongson Loongson ● Yeeloong ● History on OpenBSD My workflow Loongson ● So where do I get one? MIPS & Ports MIPS & Ports Goal: ● Provide as close to the number of packages on amd64/i386 as possible. MIPS & Ports OpenBSD 5.3 packages: ● i386: 7670 ● amd64: 7632 ● powerpc: 7215 ● sparc64: 6756 ● mips64el: 6539 ● mips64: 6519 ● hppa: 6401 ● alpha: 6151 ● vax: 2081 Big Ticket Items We Have ● Gtk+2, Gtk+3 ● Python ● Webkit* ● Mplayer/other audio players ● Abiword/other office apps ● WMs/DEs up to Xfce in complexity Big Ticket Items We Don't Have ● Mozilla* ● LibreOffice ● Qt4 ● Clang ● gcc > 4.2.1 ● Video support (not ports related) Common Problems Audience participation Common Problems # elif if __GNUC__ > 2 || __GNUC__MINOR__ >= 7 Common Problems ● Assuming attributes of target machines. ● General incompatibilities. Common Problems ● Sometimes the problem is on our side... ● Usually toolchain related. ● Memory mapping fixing. ● No accelerated X. ● CPU speed... Common Problems ● How do we get upstream to care about MIPS? ● How do we get upstream to care about OpenBSD? Talking to Upstream ● If you make a port, you notify upstream. ● With few exceptions, if upstream does not explicitly mention OpenBSD on their website, we should consider it a bug like any other. ● Most are very happy to add OpenBSD to their list of known working platforms, and thankful for patches. ● But not everyone... Talking to Upstream Hi ${NAME} – Hi, I'm Brian, an OpenBSD developer. I found $ {SOFTWARE} and I really enjoy it. I ported $ {SOFTWARE} to OpenBSD. Below are some patches for your consideration that were necessary to get $ {SOFTWARE} working on OpenBSD. And for your knowledge, ${SOFTWARE} works on i386/amd64 machines, PowerPC machines, and even Loongson (a MIPS64 CPU) machines! Thanks for the great software! ~Brian <patches go here> Talking to Upstream Hi ${NAME} – ${SOFTWARE} just hit the ports tree, so it is available to all OpenBSD users. <link to cvsweb> Consider placing a mention to OpenBSD on your website. Thanks again! ~Brian The future of OpenBSD/MIPS The future of OpenBSD/MIPS ● Loongson-3 support. ● Improved toolchain ● Fixing bugs …and fixing bugs ...and fixing bugs :) ● Supporting more devices? The future of OpenBSD/MIPS ● What's holding us back? ● ABI support ● Hardware! Oh... and one last thing... OpenBSD/octeon OpenBSD/octeon ● Targeting the Portwell CAM-0100 and the UBNT EdgeRouter LITE. ● Still in early development. OpenBSD/octeon ● History – begins in 2010 with IIJ SDK ● EdgeRouter LITE jumpstarts current efforts. OpenBSD/octeon ● What works? ● What doesn't? OpenBSD/octeon ● How can I help? Questions/Comments/Flames/Occasional encouragement: [email protected] ADN: bcallah@ The End .